Yes, bwi has been running warm relative to other stations since last year. Departures relative to normal have been pretty consistently higher than DCA and iad.
Air pollution controls have worked. There’s been a notable decline of code purple or code red pollution days in the area over the last 20 years. Add in the COVID quarantine, and this year has had the best air quality in decades.
Hmmm...some action on radar out toward the Shenandoah. Any chance it makes it to the urban corridor? Seems like some of the cooler air has already advected in so think it probably dies?